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  2. Möbius function - Wikipedia

    en.wikipedia.org/wiki/Möbius_function

    The Möbius function () is a multiplicative function in number theory introduced by the German mathematician August Ferdinand Möbius (also transliterated Moebius) in 1832. [ i ] [ ii ] [ 2 ] It is ubiquitous in elementary and analytic number theory and most often appears as part of its namesake the Möbius inversion formula .

  3. Möbius inversion formula - Wikipedia

    en.wikipedia.org/wiki/Möbius_inversion_formula

    In mathematics, the classic Möbius inversion formula is a relation between pairs of arithmetic functions, each defined from the other by sums over divisors. It was introduced into number theory in 1832 by August Ferdinand Möbius .

  4. Möbius transformation - Wikipedia

    en.wikipedia.org/wiki/Möbius_transformation

    The set of all parabolic Möbius transformations with a given fixed point in ^, together with the identity, forms a subgroup isomorphic to the group of matrices {()}; this is an example of the unipotent radical of a Borel subgroup (of the Möbius group, or of SL(2, C) for the matrix group; the notion is defined for any reductive Lie group).

  5. Linear fractional transformation - Wikipedia

    en.wikipedia.org/wiki/Linear_fractional...

    Linear fractional transformations are widely used in various areas of mathematics and its applications to engineering, such as classical geometry, number theory (they are used, for example, in Wiles's proof of Fermat's Last Theorem), group theory, control theory.

  6. Cayley transform - Wikipedia

    en.wikipedia.org/wiki/Cayley_transform

    Cayley transform of upper complex half-plane to unit disk. On the upper half of the complex plane, the Cayley transform is: [1] [2] = +.Since {,,} is mapped to {,,}, and Möbius transformations permute the generalised circles in the complex plane, maps the real line to the unit circle.

  7. The Möbius Mystery Has Stumped Mathematicians for 46 ... - AOL

    www.aol.com/lifestyle/m-bius-mystery-stumped...

    The Möbius strip is one of the most famous objects in mathematics. Discovered in 1858 by two German mathematicians—August Ferdinand Möbius and Johann Benedict Listing—the Möbius strip is a ...

  8. August Ferdinand Möbius - Wikipedia

    en.wikipedia.org/wiki/August_Ferdinand_Möbius

    Many mathematical concepts are named after him, including the Möbius plane, the Möbius transformations, important in projective geometry, and the Möbius transform of number theory. His interest in number theory led to the important Möbius function μ(n) and the Möbius inversion formula. In Euclidean geometry, he systematically developed ...

  9. Talk:Möbius function - Wikipedia

    en.wikipedia.org/wiki/Talk:Möbius_function

    We start with particular point, let us say 1 at the center and we do almost the same as in Ulam's prime spiral. We go upwards for a unit (but units does not count in L-systems I guess). We calculate μ(n+1) and we get μ(2)= -1. If it changes the sign, we go left, otherwise we go right -just like a turtle with a supermind would go to catch ...